#!/bin/sh
set -x

to_lc() { echo "$1" | tr '[:upper:]' '[:lower:]'; }
clean() { echo "$1" | tr -d -c 'a-zA-Z0-9-' ; }
cmp_lc() { [ "$(to_lc "$(clean "$1")")" = "$(to_lc "$(clean "$2")")" ]; }

# Add torrust user, based upon supplied user-id.
if [ -z "$USER_ID" ] && [ "$USER_ID" -lt 1000 ]; then
    echo "ERROR: USER_ID is not set, or less than 1000"
    exit 1
fi

adduser --disabled-password --shell "/bin/sh" --uid "$USER_ID" "torrust"

# Configure Permissions for Torrust Folders
chown -R "${USER_ID}" /var/log/torrust
chmod -R 2770 /var/log/torrust

# Make Minimal Message of the Day
if cmp_lc "$RUNTIME" "runtime"; then
    printf '\n in runtime \n' >> /etc/motd;
elif cmp_lc "$RUNTIME" "debug"; then
    printf '\n in debug mode \n' >> /etc/motd;
elif cmp_lc "$RUNTIME" "release"; then
    printf '\n in release mode \n' >> /etc/motd;
else
    echo "ERROR: running in unknown mode: \"$RUNTIME\""; exit 1
fi

if [ -e "/usr/share/torrust/container/message" ]; then
    cat "/usr/share/torrust/container/message" >> /etc/motd; chmod 0644 /etc/motd
fi

# Load message of the day from Profile
# shellcheck disable=SC2016
echo '[ ! -z "$TERM" -a -r /etc/motd ] && cat /etc/motd' >> /etc/profile

cd /home/torrust || exit 1

# Switch to torrust user
exec /bin/su-exec torrust "$@"